i received a private message regarding this thread.
this isn't a good question; both (d) and (e) are justifiable answers.
if the sentence is talking about parents who actually have daughters -- i.e., parents should discipline boys in the same way in which they actually discipline girls -- then (d) works.
if the sentence is presenting a hypothetical situation, in which the parents may not actually have daughters, then (e) works.
(e) is somewhat better than (d), because the context involves general advice given by popular psychologists; truly general advice should not only apply to parents who happen to have daughters.
on the other hand, (d) is certainly not wrong enough to be an incorrect answer on an official problem.
ignore; distrust the source; move on.
Ron has been teaching various standardized tests for 20 years.
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Pueden hacerle preguntas a Ron en castellano
Potete chiedere domande a Ron in italiano
On peut poser des questions à Ron en français
Voit esittää kysymyksiä Ron:lle myös suomeksi
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Quand on se sent bien dans un vêtement, tout peut arriver. Un bon vêtement, c'est un passeport pour le bonheur.
Yves Saint-Laurent
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